Research
- Novel designs and statistical methods for evaluating the effect of vaccines on transmission
- Causal inference in the presence of interference, particularly for evaluating indirect, total, and overall effects of vaccination
- Causal inference for post-infection outcomes
- Design and analysis of carriage studies, currently meningococcal carriage studies in Bamako, Mali
- Bayesian and likelihood methods for analyzing household, school, and camp transmission studies, particularly influenza
- Design and analysis of group-randomized studies of vaccination, currently influenza vaccination in Senegal
- Methods for the analysis of contact data to infer transmission networks
- Bayesian methods for the analysis of spread of infectious diseases, currently EV71 in China
- Use of validation sets for outcomes in vaccine efficacy and effectiveness studies
- Within-host models of the immune system
- Contact intervals, survival analysis of epidemic data, and estimation of Ro
- Containing bioterrorist and emerging infectious diseases